1394639284 has 48 divisors (see below), whose sum is σ = 2559029760. Its totient is φ = 664289280.

The previous prime is 1394639263. The next prime is 1394639291. The reversal of 1394639284 is 4829364931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3409672 + ... + 3410080.

It is an arithmetic number, because the mean of its divisors is an integer number (53313120).

Almost surely, 2^1394639284 is an apocalyptic number.

It is an amenable number.

1394639284 is a deficient number, since it is larger than the sum of its proper divisors (1164390476).

1394639284 is a wasteful number, since it uses less digits than its factorization.

1394639284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 49.

The square root of 1394639284 is about 37344.8695807068. The cubic root of 1394639284 is about 1117.2592648580.

The spelling of 1394639284 in words is "one billion, three hundred ninety-four million, six hundred thirty-nine thousand, two hundred eighty-four".